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1
56
57 package org.objectstyle.cayenne.dataview.dvmodeler;
58
59 import java.util.*;
60 import org.jdom.*;
61
62
67
68 public class ObjEntityView extends DVObject {
69 private DataView dataView;
70 private ObjEntity objEntity;
71
72 private List objEntityViewFields = new ArrayList();
73
74 private List loadErrors = new ArrayList();
75 private List saveErrors = new ArrayList();
76
77 private Set objEntityViewFieldsNames = new HashSet();
78
79 public ObjEntityView(CayenneProject project, DataView dataView, Element element) {
80 this.dataView = dataView;
81 String  viewPath = "<b>" + dataView + ".";
82 String attributeValue = element.getAttributeValue("name");
83 if ((attributeValue == null) || (attributeValue.length() == 0)){
84 setName("");
85 viewPath += "</b><br>";
86 loadErrors.add(viewPath + "ObjEntity View has no attribute \"name\"<br><br>");
87 } else {
88 setName(attributeValue);
89 viewPath += attributeValue + "</b><br>";
90 }
91
92 attributeValue = element.getAttributeValue("obj-entity-name");
93 if ((attributeValue == null) || (attributeValue.length() == 0)){
94 objEntity = null;
95 loadErrors.add(viewPath + "ObjEntity View has no attribute \"obj-entity-name\"<br><br>");
96 } else {
97 ObjEntity entity = project.getObjEntity(attributeValue);
98 if (entity != null){
99 objEntity = entity;
100 objEntity.addObjEntityView(this);
101 } else {
102 objEntity = null;
103 loadErrors.add(viewPath + "ObjEntity \""
104 + attributeValue + "\" does not exist in the project<br><br>");
105 }
106
107 }
108 List objEntityViewFieldElements = element.getChildren("field");
109 Iterator itr = objEntityViewFieldElements.iterator();
110 while(itr.hasNext()){
111 Object o = itr.next();
112 Element fieldElement = (Element)o;
113 ObjEntityViewField field = new ObjEntityViewField(this, fieldElement);
114 if (objEntityViewFieldsNames.add(field.getName()) == false){
115 String path = "<b>" + dataView.getName() + "." + getName()
116 + "." + field.getName() + "</b><br>";
117 loadErrors.add(path + "ObjEntityView Field \"" + field.getName()
118 + "\" already exists in the ObjEntity View\"" + getName() + "\"<br><br>");
119 }
120 loadErrors.addAll(field.getLoadErrors());
121 }
122 objEntityViewFieldsNames.clear();
123 dataView.addObjEntityView(this);
124 }
125
126 public ObjEntityView(DataView dataView){
127 this.dataView = dataView;
128 setName("ObjEntityView");
129 dataView.addObjEntityView(this);
130 }
131
132 public List getLoadErrors(){
133 return Collections.unmodifiableList(loadErrors);
134 }
135
136 public List getSaveErrors(){
137 return Collections.unmodifiableList(saveErrors);
138 }
139
140 public void setDataView(DataView dataView){
141 this.dataView = dataView;
142 }
143
144 public DataView getDataView(){
145 return dataView;
146 }
147 public void clearObjEntity(){
148 objEntity = null;
149 }
150
151 public void setObjEntity(ObjEntity objEntity){
152 if(this.objEntity != null){
153 this.objEntity.removeObjEntityView(this);
154 }
155 if (objEntity != null){
156 this.objEntity = objEntity;
157 objEntity.getDataMap().addObjEntityView(this);
158 }else{
159 this.objEntity = null;
160 }
161 }
162
163 public ObjEntity getObjEntity(){
164 try{
165 return objEntity;
166 } catch(Exception e){
167 return null;
168 }
169 }
170
171 public List getObjEntityViewFields() {
172 return Collections.unmodifiableList(objEntityViewFields);
173 }
174
175 public ObjEntityViewField createObjEntityViewField(){
176 String nameRoot = "field";
177 String name = nameRoot;
178 for (int i = 0; i < Integer.MAX_VALUE; i++) {
179 name = nameRoot + i;
180 boolean nameExists = false;
181 for (int j = 0; j < objEntityViewFields.size(); j++) {
182 ObjEntityViewField objEntityViewField = (ObjEntityViewField)objEntityViewFields.get(j);
183 nameExists = name.equalsIgnoreCase(objEntityViewField.getName());
184 if (nameExists)
185 break;
186 }
187 if (!nameExists)
188 break;
189 }
190 ObjEntityViewField objEntityViewField = new ObjEntityViewField(this);
191 objEntityViewField.setName(name);
192 return objEntityViewField;
193 }
194
195 public void addObjEntityViewField(ObjEntityViewField objEntityViewField){
196 objEntityViewFields.add(objEntityViewField);
197 }
198
199 public void removeObjEntityViewField(ObjEntityViewField objEntityViewField){
200 objEntityViewFields.remove(objEntityViewField);
201 }
202
203 public ObjEntityViewField getObjEntityViewField(String name){
204 Iterator itr = objEntityViewFields.iterator();
205 while (itr.hasNext()){
206 Object o = itr.next();
207 ObjEntityViewField objEntField = (ObjEntityViewField)o;
208 if (objEntField.getName().equals(name)){
209 return objEntField;
210 }
211 }
212 return null;
213 }
214
215 public ObjEntityViewField getObjEntityViewField(int index){
216 return (ObjEntityViewField)(objEntityViewFields.get(index));
217 }
218
219 public int getIndexOfObjEntityViewField(ObjEntityViewField objEntityViewField){
220 return objEntityViewFields.indexOf(objEntityViewField);
221 }
222
223
224 public int getObjEntityViewFieldCount(){
225 return objEntityViewFields.size();
226 }
227
228 public void clear(){
229 objEntityViewFields.clear();
230 }
231
232 public String toString(){
233 return getName();
234 }
235
236 public Element getObjEntityViewElement(){
237 Element objEntityViewElement = new Element("obj-entity-view");
238
239 if (saveErrors.size() != 0){
240 saveErrors.clear();
241 }
242
243 String viewPath = "<b>" + dataView.getName() + "."
244 + getName() + "</b><br>";
245
246 objEntityViewElement.setAttribute("name", getName());
247 if (getName().length() == 0){
248 saveErrors.add(viewPath + "ObjEntity View has no name<br><br>");
249 }
250
251 if (objEntity != null){
252 objEntityViewElement.setAttribute("obj-entity-name", objEntity.getName());
253 }else{
254 objEntityViewElement.setAttribute("obj-entity-name", "");
255 saveErrors.add(viewPath + "ObjEntity View has no attribute obj-entity-name<br><br>");
256 }
257
258 List objEntityViewFieldElements = new ArrayList();
259 Set objEntityViewFieldsSort = new TreeSet(new ObjEntityViewFieldComparator());
260 objEntityViewFieldsSort.addAll(objEntityViewFields);
261
262 Iterator itr = objEntityViewFieldsSort.iterator();
263 while (itr.hasNext()){
264 Object o = itr.next();
265 ObjEntityViewField field = (ObjEntityViewField)o;
266 Element objEntityViewFieldElement =
267 field.getObjEntityViewFieldElement();
268 if (objEntityViewFieldsNames.add(field.getName()) == false){
269 String path = "<b>" + dataView.getName() + "." + getName()
270 + "." + field.getName() + "</b><br>";
271 saveErrors.add(path + "ObjEntityView Field \"" + field.getName()
272 + "\" already exists in the ObjEntity View \"" + getName() + "\"<br><br>");
273 }
274
275 saveErrors.addAll(field.getSaveErrors());
276 objEntityViewFieldElements.add(objEntityViewFieldElement);
277 }
278 objEntityViewFieldsNames.clear();
279 objEntityViewElement.setContent(objEntityViewFieldElements);
280 return objEntityViewElement;
281 }
282 }
283 |
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